Operator's Exam

Which water system class (letter) for more than 5 MGD?

A

Which water system class (letter) for between 1 and 5 MGD?

B

Which water system class (letter) for between 0.1 and 1 MGD?

C

Which water system class (letter) for less than 0.1 MGD?

D

Which water system class (letter) for distribution/consecutive systems without treatment?

E

Small Dc water systems

• systems that serve less than ____ individuals or has no more than ___ connections, whichever is ____.

• the source of water for the systems is exclusively ______

• requires only _____ AND

• meets other applicable provided by the Act and is not in violation of the Act or other PA DEP rules and regulations

500, 150, less, groundwater, disinfection

Small system Dn

• Same criteria as Dc system except water requires ___ treatment

no

water system subclass 1

conventional filtration

water system subclass 2

direct filtration

water system subclass 3

diatomaceous earth filtration

water system subclass 4

slow sand filtration

water system subclass 5

cartridge/ bag filtration

water system subclass 6

membrane filtration

water system subclass 7

corrosion control

water system subclass 8

chemical addition

water system subclass 9

inorganic removal

water system subclass 10

organic removal

water system subclass 11

gaseous chlorine disinfection

water system subclass 12

non-gaseous chlorine disinfection

water system subclass 13

UV disinfection

water system subclass 14

ozone disinfection

SDWA authorizes ___ to set national health-based standards for drinking water to protect against both naturally occurring and man made contaminants that may be found in drinking water. They are divided into ____ and ____ standards.

EPA, primary, secondary

primary dw standards (national primary drinking water standards) - ______ enforceable standards that apply to ___ water systems. Primary standards protect public health by limiting the levels of specific ________ in drinking water

legally, public, contaminants

MRDL

maximum residual disinfectant level

MCL

maximum contaminant level

treatment technique (TT)- requires specific treatment method known to cause a _____ in the level of a contaminant which cannot be practically regulated by using a ______

reduction, MCL

secondary standards - guidelines regulating contaminants that may cause _____ or _____ effects in drinking water

aesthetic, cosmetic

PADEP ____ require monitoring for secondary contaminants and is obligated to require public ____ and ____ if secondary MCLs are violated.

does, notification, treatment

surface water treatment rule - implemented to overcome the shortfalls of the _______. effective in june 1989. _____ has primary enforcement

NPDWS, PADEP

Which operator classes do you need 15 hours of continuing education requirements in the first three years and 30 hours after?

A, B, C

Which operator classes do you need 8 hours of continuing education requirements in the first three years and 15 hours after?

D, E

requirements of the surface drinking water rule

• requires ______ of all surface supplies, including ____ water under the direct influence of surface water (GUDI) sources

• establishes treatment technique to achieve at least 99.9% removal or inactivation (3-log removal) of _______ ____ cysts and 99.99% (4-log removal) of _____

• systems must be operated by “____ _____”

• establishes criteria for operating without _____

• establishes CT as a basis for ______

• establishes suitable filtration technologies and performance criteria for the removal of ___ and _____.

• establishes _____ requirements and MCLs for combined filter effluent turbidity to monitor the _____ of filtration system
  

disinfection, ground

giardia lamblia, viruses

qualified personel

filtration

disinfection

turbidity, giardia

sampling, performance

SWTR criteria to operate without filtration

• system must meet specific source water quality criteria and must still meet the _______ requirements

• all systems that do not meet the avoidance criteria must provide _____

• all _____water and ____ sources must provide filtration

disinfection, filtration, surface, GUDI

CT is an abbreviation for “______ Residual Concentration multiplied by _____ time in minutes” and provides a means of determining the level of _____ being achieved under specific operating conditions.

• in the consideration of ___ circuiting that may occur in some basins, it establishes a methodology for determining effective ___ time for clearwell/basin conditions.

• it is based on disinfectant used, disinfectant ____, ___ time, water _____, __, and required “log” removal of targeted ____

disinfectant, contact

short, disinfection

concentration, contact, temperature, pH, microbes

interim enhanced surface water treatment rule

• the rule builds upon the surface water treatment rule to improve control of _____ pathogens and address risk ___-___ with disinfection _____.

• effective february ___.

• ____ has primacy for enforcement.

• only affects systems that use ___ water and serve ____ people or more.

microbial, trade offs, byproducts, 1999, PADEP, surface, 10,000

interim enhanced drinking water rule major provisions

• systems required to filter under swtr must achieve at least __% (2-log) removal of the ____ cryptosporidium — systems are in compliance with this if they meet the filter ____ _____ requirements are met

• includes CT benchmarking/profiling requirements to ensure _____ in disinfection practices to reduce to reduce DBPs dont result in _____ disinfection

99, protozoan, effluent turbidity, changes, less

NTU stands for?

Nephelometric Turbidity Unit (standardized unit to measure turbidity)

effluent turbidity?

the cloudiness of water leaving WTP

strengthened filter effluent turbidity requirements (from interim enhanced SWTR)

• combined filter effluent turbidity must be below ___ NTU in at least __% of the turbidity measurements taken every __ hours.

• Combined filter effluent must be below __ NTU at all times

• turbidity must be _____ continuously

0.3, 95, 1, monitored

CT benchmarking requirements (from interim enhanced SWTR)

• operator must record disinfectant residual, water temp, pH, and contact time ____ during peak ____ flow for one year.

• this information is used to calculate giardia lamblia _____for each day. _____ average is plotted, which is called the _____ profile

  • lowest level on current profile is called ____

• if changes are made to disinfection, giardia levels must not be below the current system’s _____ point of profile

daily, hourly

inactivation, monthly, disinfection

benchmark

lowest

all new treated storage tanks/reservoirs must be _____ (per interim enhanced swtr)

covered

states are required to conduct ____ surveys for all systems using surface water or GUDI (per interim enhanced swtr)

sanitary

Long Term 1 Enhanced Surface Water Treatment Rule (LT1)? effective when?

Like Interim enhanced swtr, but for systems of less than 10,000 ppl, 2005

what is LT2 and when effective

Long Term 1 Enhanced Surface Water Treatment Rule, but for more high risk systems (higher crypto in source water). 2009

Stage 1 DBP Rule

• this rule became active in year ____

• ___ has primary enforcement

• the rule sets MCLs for _____ (___) and the total 5 ____ (____)

• It also sets maximum disinfectant residual concentrations for ____, ____, and _____.

---

1999, PADEP, trihalomethans (TTHMs), haloacetic acids (HAA5), chlorine, chloramines, chlorine dioxide

stage 1 dep rule major provisions

• applies to ___ public water systems that add _______during any part of the water treatment process

• sets MCL for TTHMs at 0.08ppm, and MCL for HAA5 at 0.06ppm.

• sets chlorite (byproduct of _____) MCL at ____and MCL for bromate at ____